Manually Register a Grandstream Phone to Yeastar S-Series VoIP PBX

Follow the steps below to configure the Grandstream phone.

1. Log in the Grandstream IP phone web user interface.
   • Username: admin
   • Password: admin

2. Click “Account” Tab, choose one account, and configure “General Settings”.

• Account Active: Yes
• Account Name: set a name for the account, the name will be displayed on the phone LCD.
• SIP Server: fill in Yeastar S-Series PBX’s IP address.
• SIP User ID: fill in the extension number.
• Authenticate ID: fill in the extension’s “Register Name”.
• Authenticate Password: fill in the extension’s “Registration Password”.

3. Click “Save and Apply”.

4. Go to “Status > Account Status” to check the account status, if the extension is registered to Yeastar S-Series PBX, the “SIP Registration” shows “Yes”.